Bio 1
Terms
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- What is an Organelle?
- little parts of the cell
- Define population
- same species living together
- What do you test when you do science?
- Hypothesis
- Collecting data based on observation is?
- Inductive Reasoning
- Another word for evolution
- Differential Reproductive success
- Single molecules of water are bound by
- polar covalent bonds
- Greatest concentration of H+ ions?
- Stomach acid
- Highest concentration of hydroxides?
- Sea Water
- Weak acid that combines reversibly?
- Buffer
- what are hydrophobic substances?
- non-polar and dont have an affinity for water
- Ionizes and forms a strong base?
- Sodium hydroxide
- Ionizes in water and forms acid
- Hydrochloride
- 4 elements of living matter?
- CHON
- Each element is unique because....
- The number of protons (atomic number)
- What do you call an element that has the same number of protons but different number of neutrons?
- Isotype
- What the difference between carbon 12 and carbon14?
- Carbon 14 has more neutrons
- How many electrons does carbon have in its valence shell?
- 4
- Trace element found in humans?
- Iodine
- What is the cation in ammonium chloride?
- Ammonium
- Proof that we have 1 common ancestor?
- Common DNA< same genetic language
- Maple leaf is what class?
- Organ
- What is a chloroplast?
- Organelle
- The chemical behavior of an atom dpeends on?
- Valence Electrons
- Atoms whose outer shell contain 8 electrons?
- non reactive
- Whens 2 atoms have equal electronegativity?
- Non-polar covalent bond
- What determines the cohesiveness of water?
- Hydrogen Bonding
- Ice floats because its crystalline structure is held by?
- Hydrogen Bonds
- Measure of average kinetic energy?
- Temperature
- Substance combines reversibly with Hydrogen?
- Buffer
- How many neutrons does sulfur contain?
- 16
- How many neutrons does nitrogen contain?
- 7
- Elect transferring from one to another
- Ionic Bond
- Life on Earth depends on water, what property is most important on a molecular level?
- solventy
- when is water densest?
- 4 degrees C
- what are the basic "building blocks" of DNA
- four nucleotides
- Chemical reactions of matabolism within cells are regulated by organic catalysts, called?
- enzymes
- There are approx how many identified species?
- 1.5 mil
- What is a hypothesis?
- A tentative explanation
- Another way to say natural selection?
- Differential Reproductive Success
- Which bonds must be broken for water to vaporize?
- Hydrogen Bonds
- What is true about buffer solutions?...
- Tend to maintain a relatively constant PH